CN102570014A - Design technology of horizontal polarization omnidirectional antenna with adjustable lobe elevation angle - Google Patents
Design technology of horizontal polarization omnidirectional antenna with adjustable lobe elevation angle Download PDFInfo
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- CN102570014A CN102570014A CN2011103671451A CN201110367145A CN102570014A CN 102570014 A CN102570014 A CN 102570014A CN 2011103671451 A CN2011103671451 A CN 2011103671451A CN 201110367145 A CN201110367145 A CN 201110367145A CN 102570014 A CN102570014 A CN 102570014A
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Abstract
The invention relates to a design technology of a horizontal polarization omnidirectional antenna with an adjustable lobe elevation angle, which solves the problems of the traditional horizontal polarization omnidirectional antenna, such as fixed pitch face wave beam directing, low antenna gain and high impedance matching difficulty. The antenna comprises a top-end reflection plate, a micro-strip antenna, a bottom-end reflection plate and supporting medium columns, wherein the micro-strip antenna consists of four arc-shaped micro-strip dipoles which are arranged along the circumstance; metal plates on the top end and the bottom end are arranged on the upper side and the lower side of the micro-strip antenna; the sizes of the upper metal plate and the lower metal plate can change the directing of the pitch face wave beam; the micro-strip antenna is clamped between flanges of the medium columns on two sides and is fixed by bolts; and a hole is punched at the middle part of the lower metal plate and a feed cable can pass through the hole. The standing wave of the antenna is less than 1.5 within 10% of relative frequency band, gain in an azimuth plane is higher than 2.3dB, gain fluctuation is less than 1dB, a cross polarization level is lower than -30dB, and wave beam directing is adjustable. According to the design technology, the antenna gain, the impedance matching, the cross polarization performance and the anti-interference performance of the top end and the bottom end of the antenna are improved. The design technology is suitable for the fields, such as broadcasting communication and electronic countermeasure.
Description
Affiliated technical field
The present invention relates to a kind of lobe elevation angle horizon adjustable polarization Design of Omnidirectional Antenna technology, specifically is bimetallic plates loading, dielectric support, single layer microstrip dipole circular array antenna that the pitching beam position is adjustable.The present invention both can be used as the dual-mode antenna of the broadcasting and TV communications field, can in electronic countermeasures, be used as the bait antenna again.
Background technology
The antenna pattern of horizontally polarized omnidirectional antenna is a direction-free circle in azimuth plane, and it is widely used in communication broadcasting, radar beacon and enemy and we's identification and other fields.Because magnetic dipole does not exist, so horizontally polarized omnidirectional antenna need lean on the directional diagram stack to form omnidirectional radiation.
Characteristics such as little band omnidirectional antenna Yin Qiyi processing, light weight, low cost and obtain broad research, relatively typical method has:
1. non-horizontal coplane combined antenna; Mainly contain characteristics of conformal microstrip antenna (Immanual Jayakumar; Ramesh Garg, Sarap B K, Bhagwan Lal.A conformal cylindrical microstrip array forproducing omnidirectional radiation pattern [J] .IEEE Transaction on Antennas and Propagation; 1986; 34 (10): 1258-1261), the square battle array of four unit microband pastes (Li Shuo, the design and the research of horizontal polarization omnidirectional (high-gain) communication antenna, University of Electronic Science and Technology's Master's thesis in 2007).This type distributes antenna element around carrier, can form omnidirectional radiation.Make the high and big shortcoming of weight of required precision but exist.
2. horizontal coplane combined antenna, mainly contain the square battle array of Alford loop antenna, printed dipole (Qian Songsong, Li Xingguo. a kind of equivalent omnidirectional antenna that constitutes by tapered slot antenna. the microwave journal; 2006; 22 (2): 41-44) with the printed dipole circle (Feng Zujian, Zhang Lixin, Sun Shaoguo. the design of horizontally polarized omnidirectional antenna. the microwave journal; 2008,24 (6): 60-64).Such antenna element all is etched on little band plate, makes precision height and light weight.But existing design exists the impedance matching difficulty, and metal support structure is installed in the below upwarps antenna beam and shortcoming such as pitching ground roll Shu Zhixiang is non-adjustable.
Summary of the invention
The objective of the invention is to: a kind of lobe elevation angle horizon adjustable polarization Design of Omnidirectional Antenna technology is provided, overcomes the Antenna Impedance Matching difficulty, shortcoming such as antenna pitching beam position is non-adjustable.Antenna has simple in structure, and gain is high, and lobe rises and falls and hangs down and characteristics such as antijamming capability is strong in the azimuth plane.
The concrete technical scheme that realizes above-mentioned purpose is following:
Utilize a plurality of microstrip dipole analog current rings, four microstrip dipoles are evenly distributed on the circumference of little band plate.Load two metallic plates in the upper and lower both sides of little band plate.Utilize the flange of four medium posts to support little band plate and be screwed, the other end of medium post is fixed in the installing hole of metallic plate.
The terminal of microstrip dipole is an arc, and each dipole between leave at interval.
Utilize two-stage power division network feed.After the parallel wire feeding network parallel connection of per two microstrip dipoles, again through the transition of parallel wire to microstrip line, last two microstrip lines parallel connection and coaxial fitting coupling.
Adopted the symmetric feeds structure.
Below punching in the middle of the metallic plate, supply feeder cable to pass.
The useful technique effect of microstrip antenna of the present invention is embodied in following several aspect:
1, the upper and lower both sides of microstrip dipole respectively load a metallic plate, and the mirror effect of metallic plate has improved the gain of antenna; Improved the antijamming capability of antenna upper and lower end simultaneously.
2, adjustment metallic plate diameter dimension can change pitching ground roll Shu Zhixiang.
3, be converted into microstrip line again after the parallel wire feeding network parallel connection of per two microstrip dipoles, reduced parallel wire and microstrip line difficulty of matching.
4, the centre bore of feeder cable metallic plate from the below passes, and does not influence the antenna omnidirectional radiation characteristic.
Final design result shows, less than 1.5, gain is higher than 2.3dB to antenna of the present invention in the azimuth plane at 10% relative band standing internal wave, and gain fluctuation is less than 1dB, and cross polarization level is lower than-30dB.Beam position is regulated simple in the antenna pitching face.
Description of drawings
Below in conjunction with Figure of description, the present invention is done to describe further through embodiment.
Fig. 1 is the structure perspective view of antenna of the present invention;
Fig. 2 is little band plate vertical view of antenna of the present invention;
Fig. 3 is the microstrip dipole unit of antenna of the present invention;
Fig. 4 is a feeding network of array antennas of the present invention;
Fig. 5 is the port standing wave curve of high-frequency structure emulation (HFSS) software emulation of embodiment 1;
Fig. 6～8 are the azimuth plane antenna pattern of the basic, normal, high frequency of antenna of high-frequency structure emulation (HFSS) software emulation of embodiment 1;
Fig. 9～11 are the pitching surface radiation directional diagram of the basic, normal, high frequency of antenna of high-frequency structure emulation (HFSS) software emulation of embodiment 1;
Figure 12 is the intermediate frequency pitching surface radiation directional diagram of high-frequency structure emulation (HFSS) software emulation of embodiment 2;
Figure 13 is the structure perspective view of 3 liang of unit linear arrays of embodiment.
Embodiment
Embodiment 1:
Referring to Fig. 1, a kind of lobe elevation angle horizon adjustable polarization omnidirectional antenna.Entire antenna comprises top metal reflecting plate 1, omnidirectional microstrip antenna 2, PTFE medium post 3, bottom metallic reflection plate 4.Connect by medium flange 5 in the middle of the every medium post.Omnidirectional microstrip antenna is clipped between the upper and lower medium flange fixing, and the medium post inserts in the metallic plate installing hole fixing.The metallic plate diameter is 90mm up and down, and thickness is 2mm.Have the perforation 10 of diameter 12mm on the metallic plate of below, supply the coaxial cable of feed to pass.
As shown in Figure 2, omnidirectional microstrip antenna 2 is made up of 6, four microstrip dipoles 7 of dielectric-slab and feeding network 8.Four microstrip dipole uniform etching are on the dielectric-slab circumference, and little band plate diameter is 87mm.
As shown in Figure 3, two arms of microstrip dipole 7 lay respectively at the levels of dielectric-slab, and arcuate structure is adopted at the dipole terminal.Microstrip dipole is through parallel wire 8 feeds.
As shown in Figure 4, adopt the feed Ba Lun of parallel wire 8 as microstrip dipole.After per two parallel wire parallel connections, be converted into little band forms; Two microstrip line parallel connections link to each other with radio frequency connector 9 through the coaxial microband vertical transition.
Antenna operation principle of the present invention is following:
The E ground roll lobe of single microstrip dipole is the figure of eight, makes the directional diagram stack form omnidirectional radiation through four dipoles that on circumference, evenly are periphery.The mirror image effect of bottom support metal plate 4 upwarps antenna main beam, adds 1, two metallic plate acting in conjunction of a unidimensional metallic plate on the top and makes main beam be positioned at horizontal direction, and improve antenna gain.
Adopt the feed Ba Lun of parallel wire 8, stable performance in day tape as microstrip dipole; The two arm anti-phase feeds that connect parallel wire improve the antenna cross-polarization performance.For avoiding the parallelly connected resistance difference of four dipoles big, feeding network adopts two-stage one-to-two power splitter to form.With the parallel wire impedance design is 100 Ω, and the feeding network parallel connection of two dipoles obtains 50 Ω impedances, converts it to 100 Ω through transition line again and links to each other with microstrip line with impedance.After two microstrip line parallel connections, link to each other with radio frequency connector 9 through the coaxial microband vertical transition.
Performance of the present invention is following:
Fig. 5 is S-band antenna high-frequency structure simulation software of the present invention (HFSS) emulation standing wave curve, visible at 10% relative band standing internal wave less than 1.5.
Fig. 6～8 are the interior lobe pattern of azimuth plane (E face) of basic, normal, high three the frequency emulation of antenna.The gain of three frequencies all is higher than 2.3dB, and gain fluctuation is less than 1dB.Cross polarization level is lower than-30dB.
Fig. 9～11 are the interior lobe pattern of pitching face (H face) of basic, normal, high three the frequency emulation of antenna.The wave beam symmetry is good in the pitching face, and the lobe maximum of three frequencies all is positioned at horizontal direction.
Embodiment 2:
A preferred embodiment of the present invention is the S-band horizontally polarized omnidirectional antenna that pitching face points to 60 degree, and this antenna is that antenna below metallic plate diameter dimension among the embodiment 1 is increased to the 200mm gained.Pitching surface radiation directional diagram such as Figure 12 of center frequency point 2.85GHz are by visible pitching surface antenna beam position 60 degree of figure.
Embodiment 3:
A preferred embodiment of the present invention such as Figure 13 are binary linear arrays that is applied to the S-band omnidirectional antenna.This antenna is formed by stacking the antenna element among two embodiment 1 vertically, and two unit can pass through constant amplitude homophase feed, improves gain at pitching face.
Above content is to combine concrete optimal way to the detailed description that the present invention did, and can not assert that practical implementation of the present invention only limits to these explanations.For person of ordinary skill in the field of the present invention; Under the prerequisite that does not break away from the present invention's design; Can also make some simple deduction or replace; As adopt difform dipole and various supports form, change upper metal board size to adjust the pitching beam position, all should be regarded as belonging to the invention protection range that the present invention is confirmed by claims of being submitted to.
Claims (5)
1. a lobe elevation angle horizon adjustable polarization omnidirectional antenna comprises omnidirectional microstrip antenna, the two blocks of metallic reflection plates in top and bottom, Supporting Media post.It is characterized in that:
A, utilize a plurality of half-wave microstrip dipoles to be evenly distributed on analog current ring around the circular dielectric-slab, arcuate structure is adopted at the dipole terminal; Adopt multistage power splitter feed.
B, the upper and lower both sides of microstrip dipole load two metallic plates, and the lobe elevation angle is adjustable.
C, support omnidirectional microstrip antennas with four PTFE medium posts, the medium post is fixed on the upper and lower side metallic plate.Omnidirectional microstrip antenna is clipped between two flanges in the middle of the medium post, with screw little band plate is fixed.
D, below punching in the middle of the metallic plate, supply feeder cable to pass.
2. lobe according to claim 1 elevation angle horizon adjustable polarization omnidirectional antenna, it is characterized in that: omnidirectional microstrip antenna is made up of four microstrip dipoles and feeding network.Four microstrip dipole uniform etching are on the dielectric-slab circumference.Two arms of each dipole lay respectively at the levels of dielectric-slab, and arcuate structure is adopted at the dipole terminal.Adopt the feed Ba Lun of parallel wire as microstrip dipole.After per two parallel wire parallel connections, be converted into little band forms; After two microstrip line parallel connections, link to each other with radio frequency connector through the coaxial microband vertical transition.
3. horizon adjustable polarization omnidirectional antenna in the lobe according to claim 1 elevation angle is characterized in that:
The upper and lower both sides of microstrip antenna load two metallic plates.Through adjustment metallic plate diameter dimension, can change pitching ground roll Shu Zhixiang.
4. horizon adjustable polarization omnidirectional antenna in the lobe according to claim 1 elevation angle is characterized in that:
Every medium post is made up of two-section; The part that two-section medium post contacts with microstrip antenna respectively has a medium flange, and omnidirectional microstrip antenna is clipped between two flanges and is screwed.About being installed in, the medium post other end in the installing hole of metallic plate antenna is become one.
5. horizon adjustable polarization omnidirectional antenna in the lobe according to claim 1 elevation angle is characterized in that:
Cable is avoided connecting up from antenna periphery from passing the square hole down.
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| CN2011103671451A CN102570014A (en) | 2011-11-18 | 2011-11-18 | Design technology of horizontal polarization omnidirectional antenna with adjustable lobe elevation angle |
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| CN2011103671451A CN102570014A (en) | 2011-11-18 | 2011-11-18 | Design technology of horizontal polarization omnidirectional antenna with adjustable lobe elevation angle |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022646A (en) * | 2012-12-06 | 2013-04-03 | 北京遥测技术研究所 | Full-airspace-covering high-gain circularly polarized antenna |
| CN104009299A (en) * | 2014-05-14 | 2014-08-27 | 上海交通大学 | Dual-polarization base station antenna |
| CN108039578A (en) * | 2017-12-08 | 2018-05-15 | 广东通宇通讯股份有限公司 | A kind of omnidirectional antenna |
| CN108075217A (en) * | 2018-01-19 | 2018-05-25 | 武汉波诺电子科技有限公司 | A kind of new omnidirectional antenna |
| CN108767457A (en) * | 2018-05-16 | 2018-11-06 | 中山大学 | A kind of micro-strip magnetic-dipole antenna |
| CN108832279A (en) * | 2018-06-05 | 2018-11-16 | 北京星网锐捷网络技术有限公司 | Omnidirectional antenna and angle of radiation switching method |
| CN109088169A (en) * | 2018-09-30 | 2018-12-25 | 广东通宇通讯股份有限公司 | Super-wide band high-gain horizontally polarized omnidirectional antenna |
| CN109119750A (en) * | 2017-06-22 | 2019-01-01 | 英飞凌科技股份有限公司 | Radar system and its operating method |
| CN110299609A (en) * | 2019-05-24 | 2019-10-01 | 合肥工业大学 | A kind of nested both arms flat helical antenna realizing more OAM modes and generating |
| CN111613882A (en) * | 2020-06-29 | 2020-09-01 | 中国电子科技集团公司第十四研究所 | UHF wave band omnidirectional shadow hiding antenna |
| CN112242605A (en) * | 2019-07-16 | 2021-01-19 | 启碁科技股份有限公司 | Antenna structure |
| CN112514165A (en) * | 2018-07-31 | 2021-03-16 | 株式会社友华 | Antenna device |
| CN112635976A (en) * | 2020-12-17 | 2021-04-09 | 中北大学南通智能光机电研究院 | Zigzag dipole 5G base station antenna unit |
| CN114628897A (en) * | 2022-03-11 | 2022-06-14 | 中国电子科技集团公司第二十九研究所 | High-gain omnidirectional antenna with pitching surface beam upwarping and implementation method |
| CN114865293A (en) * | 2022-05-16 | 2022-08-05 | 电子科技大学 | Cavity-loading ultra-wideband horizontal omnidirectional antenna with matching circuit |
| CN116864958A (en) * | 2023-05-30 | 2023-10-10 | 中煤科工集团武汉设计研究院有限公司 | Colliery is radio wave omnidirectional receiving antenna in pit |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022646A (en) * | 2012-12-06 | 2013-04-03 | 北京遥测技术研究所 | Full-airspace-covering high-gain circularly polarized antenna |
| CN104009299A (en) * | 2014-05-14 | 2014-08-27 | 上海交通大学 | Dual-polarization base station antenna |
| CN104009299B (en) * | 2014-05-14 | 2016-06-01 | 上海交通大学 | Bipolarization antenna for base station |
| CN109119750A (en) * | 2017-06-22 | 2019-01-01 | 英飞凌科技股份有限公司 | Radar system and its operating method |
| CN109119750B (en) * | 2017-06-22 | 2022-01-28 | 英飞凌科技股份有限公司 | Radar system and method of operating the same |
| US11204411B2 (en) | 2017-06-22 | 2021-12-21 | Infineon Technologies Ag | Radar systems and methods of operation thereof |
| CN108039578A (en) * | 2017-12-08 | 2018-05-15 | 广东通宇通讯股份有限公司 | A kind of omnidirectional antenna |
| CN108039578B (en) * | 2017-12-08 | 2023-10-13 | 广东通宇通讯股份有限公司 | Omnidirectional antenna |
| CN108075217A (en) * | 2018-01-19 | 2018-05-25 | 武汉波诺电子科技有限公司 | A kind of new omnidirectional antenna |
| CN108075217B (en) * | 2018-01-19 | 2024-04-09 | 武汉波诺电子科技有限公司 | Novel omnidirectional antenna |
| CN108767457A (en) * | 2018-05-16 | 2018-11-06 | 中山大学 | A kind of micro-strip magnetic-dipole antenna |
| CN108832279A (en) * | 2018-06-05 | 2018-11-16 | 北京星网锐捷网络技术有限公司 | Omnidirectional antenna and angle of radiation switching method |
| CN112514165A (en) * | 2018-07-31 | 2021-03-16 | 株式会社友华 | Antenna device |
| CN112514165B (en) * | 2018-07-31 | 2024-05-10 | 株式会社友华 | Antenna device |
| CN109088169A (en) * | 2018-09-30 | 2018-12-25 | 广东通宇通讯股份有限公司 | Super-wide band high-gain horizontally polarized omnidirectional antenna |
| CN109088169B (en) * | 2018-09-30 | 2023-08-22 | 广东通宇通讯股份有限公司 | Ultra-wideband high-gain horizontally polarized omnidirectional antenna |
| CN110299609A (en) * | 2019-05-24 | 2019-10-01 | 合肥工业大学 | A kind of nested both arms flat helical antenna realizing more OAM modes and generating |
| CN112242605A (en) * | 2019-07-16 | 2021-01-19 | 启碁科技股份有限公司 | Antenna structure |
| CN112242605B (en) * | 2019-07-16 | 2023-05-02 | 启碁科技股份有限公司 | Antenna structure |
| CN111613882A (en) * | 2020-06-29 | 2020-09-01 | 中国电子科技集团公司第十四研究所 | UHF wave band omnidirectional shadow hiding antenna |
| CN112635976A (en) * | 2020-12-17 | 2021-04-09 | 中北大学南通智能光机电研究院 | Zigzag dipole 5G base station antenna unit |
| CN114628897A (en) * | 2022-03-11 | 2022-06-14 | 中国电子科技集团公司第二十九研究所 | High-gain omnidirectional antenna with pitching surface beam upwarping and implementation method |
| CN114865293B (en) * | 2022-05-16 | 2023-08-18 | 电子科技大学 | Matching circuit loading buried cavity type ultra-wideband horizontal omnidirectional antenna |
| CN114865293A (en) * | 2022-05-16 | 2022-08-05 | 电子科技大学 | Cavity-loading ultra-wideband horizontal omnidirectional antenna with matching circuit |
| CN116864958A (en) * | 2023-05-30 | 2023-10-10 | 中煤科工集团武汉设计研究院有限公司 | Colliery is radio wave omnidirectional receiving antenna in pit |
| CN116864958B (en) * | 2023-05-30 | 2024-04-02 | 中煤科工集团武汉设计研究院有限公司 | Colliery is radio wave omnidirectional receiving antenna in pit |
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Application publication date: 20120711 |